Code:
/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / wpf / src / Framework / System / Windows / Documents / DPTypeDescriptorContext.cs / 1305600 / DPTypeDescriptorContext.cs
//---------------------------------------------------------------------------- // // File: TextRangeSerialization.cs // // Copyright (C) Microsoft Corporation. All rights reserved. // // Description: Set of static methods implementing text range serialization // //--------------------------------------------------------------------------- namespace System.Windows.Documents { using MS.Internal; using System.Windows; using System.Globalization; using System.Windows.Media; ////// An object implementing ITypeDescriptorContext intended to be used in serialization /// scenarios for checking whether a particular value can be converted to a string /// internal class DPTypeDescriptorContext : System.ComponentModel.ITypeDescriptorContext { //----------------------------------------------------- // // Constructors // //----------------------------------------------------- #region Constructors private DPTypeDescriptorContext(DependencyProperty property, object propertyValue) { Invariant.Assert(property != null, "property == null"); Invariant.Assert(propertyValue != null, "propertyValue == null"); Invariant.Assert(property.IsValidValue(propertyValue), "propertyValue must be of suitable type for the given dependency property"); _property = property; _propertyValue = propertyValue; } #endregion Constructors //------------------------------------------------------ // // Internal Methods // //----------------------------------------------------- #region Internal Methods // Returns non-null string if this value can be converted to a string, // null otherwise. internal static string GetStringValue(DependencyProperty property, object propertyValue) { string stringValue = null; // Special cases working around incorrectly implemented type converters if (property == UIElement.BitmapEffectProperty) { return null; // Always treat BitmapEffects as complex value } if (property == Inline.TextDecorationsProperty) { stringValue = TextDecorationsFixup((TextDecorationCollection)propertyValue); } else if (typeof(CultureInfo).IsAssignableFrom(property.PropertyType)) //NumberSubstitution.CultureOverrideProperty { stringValue = CultureInfoFixup(property, (CultureInfo)propertyValue); } if (stringValue == null) { DPTypeDescriptorContext context = new DPTypeDescriptorContext(property, propertyValue); System.ComponentModel.TypeConverter typeConverter = System.ComponentModel.TypeDescriptor.GetConverter(property.PropertyType); Invariant.Assert(typeConverter != null); if (typeConverter.CanConvertTo(context, typeof(string))) { stringValue = (string)typeConverter.ConvertTo( context, System.Globalization.CultureInfo.InvariantCulture, propertyValue, typeof(string)); } } return stringValue; } #endregion Internal Methods #region Private Methods private static string TextDecorationsFixup(TextDecorationCollection textDecorations) { string stringValue = null; // Work around for incorrect serialization for TextDecorations property // // Special case for TextDecorations serialization if (TextDecorations.Underline.ValueEquals(textDecorations)) { stringValue = "Underline"; } else if (TextDecorations.Strikethrough.ValueEquals(textDecorations)) { stringValue = "Strikethrough"; } else if (TextDecorations.OverLine.ValueEquals(textDecorations)) { stringValue = "OverLine"; } else if (TextDecorations.Baseline.ValueEquals(textDecorations)) { stringValue = "Baseline"; } else if (textDecorations.Count == 0) { stringValue = string.Empty; } return stringValue; } private static string CultureInfoFixup(DependencyProperty property, CultureInfo cultureInfo) { string stringValue = null; // Parser uses a specific type coverter for converting instances of other types to and from CultureInfo. // This class differs from System.ComponentModel.CultureInfoConverter, the default type converter // for the CultureInfo class. // It uses a string representation based on the IetfLanguageTag property rather than the Name property // (i.e., RFC 3066 rather than RFC 1766). // In order to guarantee roundtripability of serialized xaml, textrange serialization needs to use // this type coverter for CultureInfo types. DPTypeDescriptorContext context = new DPTypeDescriptorContext(property, cultureInfo); System.ComponentModel.TypeConverter typeConverter = new CultureInfoIetfLanguageTagConverter(); if (typeConverter.CanConvertTo(context, typeof(string))) { stringValue = (string)typeConverter.ConvertTo( context, System.Globalization.CultureInfo.InvariantCulture, cultureInfo, typeof(string)); } return stringValue; } #endregion Private Methods //------------------------------------------------------ // // Interface ITypeDescriptorContext // //------------------------------------------------------ #region ITypeDescriptorContext Members System.ComponentModel.IContainer System.ComponentModel.ITypeDescriptorContext.Container { get { return null; } } // Returns a value of a property - to be detected for convertability to string in a type converter object System.ComponentModel.ITypeDescriptorContext.Instance { get { return _propertyValue; } } void System.ComponentModel.ITypeDescriptorContext.OnComponentChanged() { } bool System.ComponentModel.ITypeDescriptorContext.OnComponentChanging() { return false; } System.ComponentModel.PropertyDescriptor System.ComponentModel.ITypeDescriptorContext.PropertyDescriptor { get { return null; } } #endregion #region IServiceProvider Members object IServiceProvider.GetService(Type serviceType) { return null; } #endregion #region Private Fields private DependencyProperty _property; private object _propertyValue; #endregion } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved. //---------------------------------------------------------------------------- // // File: TextRangeSerialization.cs // // Copyright (C) Microsoft Corporation. All rights reserved. // // Description: Set of static methods implementing text range serialization // //--------------------------------------------------------------------------- namespace System.Windows.Documents { using MS.Internal; using System.Windows; using System.Globalization; using System.Windows.Media; ////// An object implementing ITypeDescriptorContext intended to be used in serialization /// scenarios for checking whether a particular value can be converted to a string /// internal class DPTypeDescriptorContext : System.ComponentModel.ITypeDescriptorContext { //----------------------------------------------------- // // Constructors // //----------------------------------------------------- #region Constructors private DPTypeDescriptorContext(DependencyProperty property, object propertyValue) { Invariant.Assert(property != null, "property == null"); Invariant.Assert(propertyValue != null, "propertyValue == null"); Invariant.Assert(property.IsValidValue(propertyValue), "propertyValue must be of suitable type for the given dependency property"); _property = property; _propertyValue = propertyValue; } #endregion Constructors //------------------------------------------------------ // // Internal Methods // //----------------------------------------------------- #region Internal Methods // Returns non-null string if this value can be converted to a string, // null otherwise. internal static string GetStringValue(DependencyProperty property, object propertyValue) { string stringValue = null; // Special cases working around incorrectly implemented type converters if (property == UIElement.BitmapEffectProperty) { return null; // Always treat BitmapEffects as complex value } if (property == Inline.TextDecorationsProperty) { stringValue = TextDecorationsFixup((TextDecorationCollection)propertyValue); } else if (typeof(CultureInfo).IsAssignableFrom(property.PropertyType)) //NumberSubstitution.CultureOverrideProperty { stringValue = CultureInfoFixup(property, (CultureInfo)propertyValue); } if (stringValue == null) { DPTypeDescriptorContext context = new DPTypeDescriptorContext(property, propertyValue); System.ComponentModel.TypeConverter typeConverter = System.ComponentModel.TypeDescriptor.GetConverter(property.PropertyType); Invariant.Assert(typeConverter != null); if (typeConverter.CanConvertTo(context, typeof(string))) { stringValue = (string)typeConverter.ConvertTo( context, System.Globalization.CultureInfo.InvariantCulture, propertyValue, typeof(string)); } } return stringValue; } #endregion Internal Methods #region Private Methods private static string TextDecorationsFixup(TextDecorationCollection textDecorations) { string stringValue = null; // Work around for incorrect serialization for TextDecorations property // // Special case for TextDecorations serialization if (TextDecorations.Underline.ValueEquals(textDecorations)) { stringValue = "Underline"; } else if (TextDecorations.Strikethrough.ValueEquals(textDecorations)) { stringValue = "Strikethrough"; } else if (TextDecorations.OverLine.ValueEquals(textDecorations)) { stringValue = "OverLine"; } else if (TextDecorations.Baseline.ValueEquals(textDecorations)) { stringValue = "Baseline"; } else if (textDecorations.Count == 0) { stringValue = string.Empty; } return stringValue; } private static string CultureInfoFixup(DependencyProperty property, CultureInfo cultureInfo) { string stringValue = null; // Parser uses a specific type coverter for converting instances of other types to and from CultureInfo. // This class differs from System.ComponentModel.CultureInfoConverter, the default type converter // for the CultureInfo class. // It uses a string representation based on the IetfLanguageTag property rather than the Name property // (i.e., RFC 3066 rather than RFC 1766). // In order to guarantee roundtripability of serialized xaml, textrange serialization needs to use // this type coverter for CultureInfo types. DPTypeDescriptorContext context = new DPTypeDescriptorContext(property, cultureInfo); System.ComponentModel.TypeConverter typeConverter = new CultureInfoIetfLanguageTagConverter(); if (typeConverter.CanConvertTo(context, typeof(string))) { stringValue = (string)typeConverter.ConvertTo( context, System.Globalization.CultureInfo.InvariantCulture, cultureInfo, typeof(string)); } return stringValue; } #endregion Private Methods //------------------------------------------------------ // // Interface ITypeDescriptorContext // //------------------------------------------------------ #region ITypeDescriptorContext Members System.ComponentModel.IContainer System.ComponentModel.ITypeDescriptorContext.Container { get { return null; } } // Returns a value of a property - to be detected for convertability to string in a type converter object System.ComponentModel.ITypeDescriptorContext.Instance { get { return _propertyValue; } } void System.ComponentModel.ITypeDescriptorContext.OnComponentChanged() { } bool System.ComponentModel.ITypeDescriptorContext.OnComponentChanging() { return false; } System.ComponentModel.PropertyDescriptor System.ComponentModel.ITypeDescriptorContext.PropertyDescriptor { get { return null; } } #endregion #region IServiceProvider Members object IServiceProvider.GetService(Type serviceType) { return null; } #endregion #region Private Fields private DependencyProperty _property; private object _propertyValue; #endregion } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- PageThemeBuildProvider.cs
- AssemblyHelper.cs
- ConfigurationStrings.cs
- EventLog.cs
- SvcMapFileSerializer.cs
- XmlCharCheckingReader.cs
- SQLDecimal.cs
- DataGridCellAutomationPeer.cs
- SmtpCommands.cs
- TrustLevel.cs
- SettingsSavedEventArgs.cs
- GridItemCollection.cs
- xsdvalidator.cs
- ClientSponsor.cs
- ComplexPropertyEntry.cs
- ModelItemCollection.cs
- SchemaEntity.cs
- Matrix3D.cs
- RegexStringValidator.cs
- _CommandStream.cs
- ServiceRouteHandler.cs
- CodeMethodReturnStatement.cs
- OpenFileDialog.cs
- ScrollContentPresenter.cs
- SqlRetyper.cs
- EventLogHandle.cs
- SchemaAttDef.cs
- MexTcpBindingCollectionElement.cs
- DllNotFoundException.cs
- AsynchronousChannel.cs
- MonthCalendar.cs
- ClonableStack.cs
- SQLRoleProvider.cs
- DataGridCellsPresenter.cs
- SiteMapNodeItemEventArgs.cs
- ArrayList.cs
- NativeActivityFaultContext.cs
- TabPage.cs
- precedingquery.cs
- MonthCalendar.cs
- DbConnectionFactory.cs
- SqlDataReaderSmi.cs
- XmlNode.cs
- UndirectedGraph.cs
- PreProcessor.cs
- RoleBoolean.cs
- OlePropertyStructs.cs
- AffineTransform3D.cs
- Int32Storage.cs
- MarshalByValueComponent.cs
- ListViewDeletedEventArgs.cs
- TextElement.cs
- TextBlock.cs
- Atom10FormatterFactory.cs
- TdsRecordBufferSetter.cs
- SelectionProcessor.cs
- BitmapSource.cs
- serverconfig.cs
- TypeNameConverter.cs
- XmlNodeChangedEventArgs.cs
- DataColumnChangeEvent.cs
- SHA1CryptoServiceProvider.cs
- MergeLocalizationDirectives.cs
- ExceptionWrapper.cs
- ConnectionModeReader.cs
- ISessionStateStore.cs
- QueueProcessor.cs
- _LocalDataStore.cs
- Guid.cs
- DataGridViewCellValueEventArgs.cs
- ParameterElementCollection.cs
- OracleString.cs
- ClickablePoint.cs
- GeneralTransform.cs
- SmiSettersStream.cs
- IdentityManager.cs
- ModelEditingScope.cs
- TriggerCollection.cs
- TimerExtension.cs
- ReflectionPermission.cs
- TemplateControl.cs
- TypeUnloadedException.cs
- WindowsImpersonationContext.cs
- ZipIOEndOfCentralDirectoryBlock.cs
- TabRenderer.cs
- QilVisitor.cs
- PageSettings.cs
- SoapIgnoreAttribute.cs
- X509Utils.cs
- FixUp.cs
- OpenTypeLayoutCache.cs
- AsymmetricSignatureFormatter.cs
- InternalTypeHelper.cs
- indexingfiltermarshaler.cs
- WebServiceEnumData.cs
- RedistVersionInfo.cs
- AdornedElementPlaceholder.cs
- BridgeDataReader.cs
- MarkupWriter.cs
- WebEventTraceProvider.cs